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<html>
<head>
<title>聊天室</title>
<meta charset="utf-8"/>
<link href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet">
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<link href="./css/style.css" rel="stylesheet"/>
<script>
var maxid = 0;
function showmessage() {
//创建ajax对象
var xhr = new XMLHttpRequest();
//监听
xhr.onreadystatechange = function () {
if (xhr.readyState === 4) {
eval("var info=" + xhr.responseText);
var text = "";
for (var i = 0; i < info.length; i++)
{
text += "<div class='alert alert-success'>" +
"<span class='name'>" + info[i].send + ":</span>" +
"<span class='message'>" + info[i].content + "</span>" +
"<span>(" + info[i].time + ")</span>" +
"</div>";
maxid = info[i].id;
}
var old = document.getElementById("msg").innerHTML;
document.getElementById("msg").innerHTML = old + text;
document.getElementById("msg").scrollTop = document.getElementById("msg").scrollHeight;
}
};
//初始化
xhr.open("get", "./action.php?maxid=" + maxid);
//发送
xhr.send();
}
$(document).ready(
function ()
{
showmessage()
self.setInterval("showmessage()", 2000);
}
);
function send() {
var postData ="content="+document.getElementById('content').value;
var xhr = new XMLHttpRequest();
xhr.open("POST", "./add.php", true);
//一定要写头信息不然服务器接收不到
xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xhr.onreadystatechange = function () {
var XMLHttpReq = xhr;
if (XMLHttpReq.readyState == 4) {
if (XMLHttpReq.status == 200) {
document.getElementById('content').value="";
}
}
};
xhr.send(postData);
}
</script>
</head>
<body>
<div class="panel panel-default" id="main">
<!--聊天室名字-->
<div class="panel-heading">
<h3 class="panel-title">
匿名者聊天室
</h3>
</div>
<!--聊天室名字-->
<!--聊天室消息框-->
<div class="panel-body ">
<div class="well no-bottom ">
<!-- 消息框样式-->
<!--
<div class="alert alert-success">成功！很好地完成了提交。</div>
<div class="alert alert-info">信息！请注意这个信息。</div>
<div class="alert alert-warning">警告！请不要提交。</div>
<div class="alert alert-danger">错误！请进行一些更改。</div>
-->
<div id="msg" class="showmessage">
</div>
<!--聊天室消息框-->
<div class="well" >
<form role="form">
<div class="form-group">
<label for="name">发送消息</label>
<textarea class="form-control" id="content" name="content"
style="resize: none;font-family: Microsoft YaHei;" rows="3" >
</textarea>
</div>
<div style="text-align: right">
<button type="button" class="btn btn-primary" onclick="send()">
<span class="glyphicon glyphicon-envelope"></span>
发送
</button>
</div>
</form>
</div>
<!--聊天室发送框-->
</div>
</div>
</div>
</body>
</html>
2. [File] action.php ~ 367B Download (0) Jump to [1] [2] [3] [4] [Full screen preview]
<?php
$link = mysqli_connect('localhost', 'root', '123', 'test');
mysqli_query($link, 'set names utf8');
$info= array();
header("Content-type: text/html; charset=utf-8");
$id=$_GET['maxid'];
$data = mysqli_query($link, "select * from talk where id>$id");
while ($array = mysqli_fetch_assoc($data)) {
$info[] = $array;
};
echo json_encode($info);
3. [File] chat.sql ~ 424B Download (0) Jump to [1] [2] [3] [4] [Full screen preview]
DROP TABLE IF EXISTS `talk`; CREATE TABLE `talk` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT 'id', `send` varchar(10) CHARACTER SET utf8 DEFAULT NULL COMMENT '发送者昵称', `ip` varchar(12) CHARACTER SET utf8 DEFAULT NULL, `content` varchar(500) CHARACTER SET utf8 DEFAULT NULL, `time` varchar(50) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB AUTO_INCREMENT=52 DEFAULT CHARSET=utf8;
4. [File] add.php ~ 459B Download (0) Jump to [1] [2] [3] [4] [Full screen preview]
<?php
/**
* @功能 将表单插入数据库
*/
$content=$_POST['content'];
print_r($_POST);
$time= date("Y-m-d H:i:s", time(0));
$link = mysqli_connect('localhost', 'root', '123', 'test');
mysqli_query($link, 'set names utf8');
$ip = $_SERVER["REMOTE_ADDR"];
$sql="INSERT INTO talk VALUES(NULL,'匿名者','$ip','$content','$time')";
$data = mysqli_query($link,$sql);
echo "$content";
if($data)
echo "1";
else
echo "0";
Statement
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